(3-Methacrylamidopropyl)trimethylammonium chloride 1-Propanaminium, N,N,N-trimethyl-3-((2-methyl-1-oxo-2-propenyl)amino)-, chloride 111547-41-2 141634-05-1 51410-72-1 76623-31-9 EINECS 257-182-1 Methacrylamidopropyltrimethylammonium chloride